from pathlib import Path

import pytest

from adapter.matrix.agent_registry import AgentRegistryError, load_agent_registry


def test_load_agent_registry_reads_yaml_entries(tmp_path: Path):
    path = tmp_path / "agents.yaml"
    path.write_text(
        "agents:\n"
        "  - id: agent-1\n"
        "    label: Analyst\n"
        "  - id: agent-2\n"
        "    label: Research\n",
        encoding="utf-8",
    )

    registry = load_agent_registry(path)

    assert [agent.agent_id for agent in registry.agents] == ["agent-1", "agent-2"]
    assert registry.get("agent-1").label == "Analyst"


def test_load_agent_registry_rejects_duplicate_ids(tmp_path: Path):
    path = tmp_path / "agents.yaml"
    path.write_text(
        "agents:\n"
        "  - id: agent-1\n"
        "    label: Analyst\n"
        "  - id: agent-1\n"
        "    label: Duplicate\n",
        encoding="utf-8",
    )

    with pytest.raises(AgentRegistryError, match="duplicate agent id"):
        load_agent_registry(path)